Burner



R. HOFFMAN Nov. 29, 1927.

BURNER Filed April S. 192s fil lllllllllll.virililllllrlllllllllllldlI/Illl/l Patented Nov. 29, 1927. A

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'lntgla nunoLria `noireman.,Yfor fennv.rigLAivn Unio s i s BURNER.

applicati@ med .api-ii 3.11926.;y seiaiivo. 100,538.

'Ihis invention relates to oil'burnersand more particularly toimprovementsffor de` vices automatically locking` the` llame- Spreaderunit in the Wick tube. A

It is one olthe objects oi* theyinventio'n to provide a comi'iarative,simple and inexpensive form oit device that Willfbe capable theaccompanying drawings', of whichIT-ig.,l`

is a longitudinal section "through 'ai burner embodying oneorm ofmyinvention.

Fig. 2 is a similar vieivillustrating another form of my invention,"

Fig. Bis a section on-thejline 3f-8l ot Fig. 1. Y

Fig. 4 is a section on the line oil.41 igp2." Fig. -5 4is an .edgeviewuoffthe latchinp;H member prior to beiiigfmounted on its pivot.`Referring to the drawings indicates the usual Wick tube in which thereis an annular Wick 11. Onthe interior of the Wicl'tg-tube there is aledge 12 which supports the laine spreader unit ,13,-the details ofconstruction of this unitbeing immaterial Leitcept that there .isprovided a vertically extending rod l 111 Which.;has its )upperendfsecurediu the dise 15 and carriesa horizontally arranged..

disc 16 on its lower end. Abail 17 is provided on the flame-spreader.for conveniently Y lifting it out of the wick tube,\tlie lower .ends

ot this. bail being .formedwwvith hooks 1S which engage inperforationsin the tube 1S).

which forms a partV of Vtheunitt.` Illhilel have shown the rod 14 `forsupporting..thel` disc 16 other means of supporting this disc may be.pr.ovided,. althoughivit is preferredy that the disc 16 be sovsinaported that the Hame-spreader unit may be rotated Within the Wicktube.

A latching` member for the flame-spreader unit is provided, this beingin the form of a bell-crank lever 20 having a vertically eX- tending arm21 the upper end 1ofivhich is formed With a hook 22 for engagement withthe disc 16. There is also provided a cam surface 23 on the upper end ofthe arm 21 which cooperates with the edge of the disc 16 to move the arm21 radially outward When the lameespreader unit is insertedvin the Wicktube. The latch member 20 ispivotedo'nthe fuel .supply "pipe124, onWhiclr` the Wick: tube 10, is mounted according jto the usual practice.The member 20. hals ai.

horizontally extending' arm or` handle. 25

`which` is arranged below the Wick" tubeyanil.` serves `as a means 'lormovingfthe member 2O so as to disengage the lioolr22` from thedisc 16 topermit removal o1", the iamefspreader unit. The `ar1n25 also act-s as .aCounterweight whereby thejforce of` gravitylis util `lived tonormally'holdthe 'hookA 22 in en-l gagement `with the disc 16, thusavoiding the vneeessityfor springs or analogous-deyicesftoaccomplishlthis purpose. f

from sheet steel and,inkorderfto permit' `it to be conveniently attachedtothe -`fuel' pipe 24,

the hub of' the member 20 has a radial spl-it 26,Whichipermitsthe metal"on opposite sides y ofthe splittobefbent, as shown -27gan`d 28,` inFig; 5, sonthatthehmember 20-may``beslipped. over the" :fuel :pipe 'andithe portionsV 27 `'and l28. then lbent baclr` into the plane ot' l the:member.20. c f In .orderxto .forina-fguideifor the arm 21 and also astopto limit its inward move1nenr,-

when detachedromi-the.disc 16, I have profvided` the member 29-Which1hasa radially extending'L ,portion comprising .tWo folds lbef tvveenwhichthe arm:21 is movable, as shown:

in Fig.y 3.; The .member .29 is l also provided 'with the.. arcuate.portionsA 30fand`f31 which fit fonfthe. interionfot :the 'Wick .tube sand hold the member 29 inlposition i f In .the form. of :the :inventionillustrated|` `inv ,Iligsl 2aand; 4f the Sguideufor the 'arnr 211vconsists'. of an. lupright member 32 formed f .from a pieceolsheet-metal `whichiis oldech: as indicated at .33 .to provide the space'in.

whichzthe anmu21 moves.;` The .member 321V has an integra-l. bracket 13awhich: isclamped on the fuel pipe by means or' a .bolt135-r` In practicethe member 32 and the'bracket.31.1.l

The latch .member y20 is preferably stamped f .with said disc toreleasably lock the Hamespreader in position.

3. In oil burners, the` combination of a fuel supply pipe, a wick tubesecured thereon, a removable lllame-spreader supported within said wicktube, a horizontally arranged disc carried by said Haine spreader invcoaxial relation therewith, and a latch member pivoted on said pipe andcooperatingl with 4said disc to releasably lock the flame-spreader inposition. A

4; In oil burners, the combination of a wick tube, a removableflame-spreader supported within said wick tube and havingr a central rodwith a horizontally arranged disc onjits lower end, and a verticallyarranged latch member movable radially of the WickA tube by said discwhen the flamespreader is. inserted in the wick tube and having means toengage the upper side of the disc to loclrthe ame-spreader in position.-f

' 5..In oil burners, the ycombination ofy a' wick'tube, a removablellame-spreader supported ywithin said wick tube and having a central rodwitha horizontally arranged disc on its lowerend, a vertically arrangedlatch member movable radially of the wick tube .by said discwhen thellame-spreader is inserted in the wick tube and adapted to automaticallyengage the dise to lock the flame-spreadervinY position, and said latchmember having a handle below the wick tube' whereby said member maybedisengaged from said'disc to release the name-spreader. 6. In oilburners, the combination of a wick tube, a removable flame-spreadersup-I ported within said Ywick tube and having a central rod with ahorizontally arranged disc on its lower end, a latch member adapted toautomatically engage said disc to lock the flame-spreader in position,and said latch member ,having a rhandle extending below the wick tubewhereby said member may be disengaged from said disc to release theflame-spreader.

7. In oil burnels, the combination of a wick tube, a removableflame-spreader supported within said wick tube, a fuel pipe on which thewick tube is supported, a latch member for the flame-spreader pivoted on4said pipe a guide for the latch member supported within the wick tube,and a handle on said latch member extending horizontally below thefwicktube and actuated by gravity to eiiect the engagement of the latchmemberwith the flame-spreader.

8. In oil burners, the combination of a wick tube, a removableflame-spreader supported within said wick tube, a fuel pipe below thewick tube, a vertically arranged bell-crank pivoted on said pipe andmovable in a plane radial to the axis of the wick tube, said bell-crankhaving a vertical arin provided with means for engaging the lamespreader to loclrthe latter in position, and a guide for said verticalarm having means to limit the movement of the bell-crank in onedirection. Y

9. In oil burners, the combination ot a wick tube, a removableflame-spreader supported within said wick tube, a fuel pipe below thewick tube, a vertically arranged bell-crank pivoted on said pipe andmovable in a plane radial to theaxis of the wick tube, said bell-crankhaving-a vertical arm provided with means for engaging the flamespreaderto lock the latter in position, and

a guidefor said vertical arm carried by Said pipe and having means tolimit the movement of the bell-crank in one direction.

l0. In oil burners, the combination ot a `wick tube, a removablellame-spreader supported withinsaid wick tube, a fuel pipe below the.wick tube, a vertically arranged bell-crank pivoted on said pipe andmovable ina plane radial to the axis of the wick tube," said bell-crankhaving` a vertical arm provided with means for engaging theflamespreader to lock the latter in position, and.

a U-shaped guide for said vertical ,arm carried by said pipe.

In testimony whereof, I hereunto affix my signature. i

RUDOLPH HOFFMAN.

